| 摘要 |
Moldings based on pyrogenically produced mixed oxide having the following physicochemical parameters:are produced by homogenizing pyrogenically produced mixed oxide as desired with one or more compounds from the group methylcellulose, methylhydroxyethylcellulose, wax, polyethylene glycol, magnesium stearate and/or aluminium stearate with addition of water, drying the product at a temperature of 70-150° C., optionally comminuting the dried product to yield a powder, optionally compressing the powder to yield moldings and performing heat treatment for a period of 0.5 to 10 hours at a temperature of 400 ° to 1200° C. These moldings are then doped with suitable catalytically active components for the production of vinyl acetate monomer using a gas phase process.
|
